Structural/Geotechnical Monitoring under Adverse Conditions with Fiber Optic Bragg Grating (FBG) Sensors Content

Title: Structural/Geotechnical Monitoring under Adverse Conditions with Fiber Optic Bragg Grating(FBG) Sensors Content

Presented by: An-Bin Huang, Ph.D., P.E. Towny C.F. Huang, Taipei, Taiwan

Date: 22 Jan 2024

Time: 18:00 – 20:00

Venue: Chan Yat Mei Sophie Room, HKIE Headquarters, 9/F Island Beverley, No.1 Great George Street, Causeway Bay, Hong Kong

Synopsis :
Citpo Technologies was established a few years ago to commercialize the fiber optic Bragg grating (FBG) sensing technologies that the speaker researched for over a decade. A full range of FBG sensors have been developed. The sensing method has now been widely applied in the field for structural/geotechnical monitoring. Some of the applications involve rather adverse field conditions and challenging requirements where FBG sensors may be the only choice for long-term and practical deployment. Multiple FBG sensors have been assembled into a single unit for structural monitoring with multiple degrees of freedom movements. Citpo Technologies is implementing safety monitoring for offshore wind turbine structures using FBG sensors. Multiple FBG sensors have been assembled into an array and inserted into a single borehole for various monitoring purposes. These include monitoring of ground response to MRT tunnel boring activities and ground subsidence mechanisms due to deep groundwater pumping. FBG piezometer array has been installed to measure possible pore water pressure response due to fault movements. Special FBG piezometer array is being developed to monitor ground performance in geothermal power generation. In these geotechnical applications, the FBG sensor arrays have been deployed into boreholes up to 500 m deep and the ground temperature can be over 200°C. The presentation briefly goes through the principles of FBG sensing and describes unique designs that allow FBG sensor arrays to be deployed in deep and/or hot boreholes with desirable resolution and economy.

About the Speaker:
Dr. An-Bin Huang is a retired professor from the Department of Civil Engineering at National Yang Ming Chiao Tung University in Hsin-Chu, Taiwan. He has a Bachelor's degree in Civil Engineering from National Taiwan University, a Master's degree from Northwestern University, and a Ph.D. in geotechnical engineering from Purdue University. In addition to serving as a geotechnical consultant, Dr. Huang is currently the Chief Technical Officer of Citpo Technologies, a company focused on optical fiber sensor development and manufacturing. Throughout his career, Prof. Huang focused his research on site characterization and sensing techniques. He has made significant contributions to the field, particularly in the areas of engineering properties of silt-sand mixtures and fiber optic sensing and its applications in geotechnical/structural engineering monitoring. His work has been widely recognized and published extensively in reputable journals. Prof. Huang has delivered numerous invited lectures on site characterization and fiber optic sensing at various international conferences, seminars, and short courses. In 1996, he received the distinguished research award from the National Science Council of Taiwan. Additionally, in 2016, he was honored by delivering the 7th James K. Mitchell Lecture.

Application deadline: 19 Jan 2024

Organisers: 

Hong Kong Institution of Engineers (Geotechnical Division)
Hong Kong Institution of Engineers (Civil Division)
Association of Geotechnical & Geoenvironmental Specialists (Hong Kong)
NTU Alumni Association (Civil & Geology) in Hong Kong

CPD Hours:This course is designed for 2 contact hours.

Medium of Instruction: English

Fee: Free of Charge.

Applications Method:
1) Application MUST BE completed online via the website of HKIE Geotechnical Division (https://hkieged.org/public/technical-activity).
Link: https://hkieged.org/public/events/JujPty7QgX8ACrk6Symu
2) First-time applicants MUST create their own accounts in the website before registering for the event.

Deadline of Application:
Online application should be made on or before 19 Jan 2024.Successful applicants will be informed via e-mail on or before 20 Jan 2024 Final confirmation will only be made when full payment is received by the Organiser.

Capacity: 50 persons. (First come, first served)

Enquires: For enquiries, please contact Ir Roger Lee at (agshk.org@gmail.com)